Hey everyone, I am in the process of getting my 75 gal build started at the first of the year. I have a new hang on back overflow box and have decided to go a different route. I am now going to use a MODULAR MARINE'S 1200 gph LOW PROFILE OVERFLOW BOX. I want this tank to be a minimalist reef and was wondering, should I put the overflow in the back corner and just have one return? Or would putting the overflow in the middle of the tank and have two returns....one in each corner be better? I want to go ahead and drill my tank, but want to make sure I use the best location for the overflow. Thanks in advance for any and all assistance.